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Ariens
Rear-Engine Riding Mower

Model # 991074 Official Ariens lawn mower

Here are the diagrams and repair parts for Official Ariens 991074 lawn mower, as well as links to manuals and error code tables, if available.

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  • In the search box below, enter all or part of the part number or the part’s name.

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For DIY troubleshooting advice and repair guides, visit our repair help section.

Owner’s manual

Model diagram and schematic

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ALL PARTS
Showing 10 of 308 parts  |
Wmt-pto Be 04053651
#15

Frame diagram

Wmt-pto be

Part #04053651

$39.75
In Stock
Wave Washer 03704900
#19

Steering controls diagram

Wave washer

Part #03704900

This item is not returnable
$4.54
In Stock
Spacer- .5 00473800
#8

Deck/discharge chute/belt covers diagram

Spacer- .5

Part #00473800

$40.76
In Stock
Bushing- S 05500905
Bushing- s

Part #05500905

$25.69
In Stock
@blt-hex .25 05946800
@blt-hex .25

Part #05946800

This item is not returnable
$2.16
In Stock
Lawn & Garden Equipment Lock Washer 06308600
#25

Electrical system diagram

Lawn & garden equipment lock washer

Part #06308600

This item is not returnable
$2.16
In Stock
Lawn Tractor Square Neck Bolt 06223600
Lawn tractor square neck bolt

Part #06223600

This item is not returnable
$3.22
In Stock
Key 06602700
#6

Engine & clutch diagram

Key

Part #06602700

$8.40
In Stock
Muffler- K 03989000
#2

Engine & clutch diagram

Muffler- k

Part #03989000

$223.51
In Stock
Lawn & Garden Equipment Washer 06436400
#18

Hydro drive diagram

Lawn & garden equipment washer

Part #06436400

This item is not returnable
$2.16
In Stock

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Why is my riding mower not cutting evenly?

Main causes: unlevel mower deck, dull or damaged cutting blades, worn mandrel pulleys, bent mower deck, engine needs tun…

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Why won't my riding mower start?

Main causes: dead battery, stale fuel, bad starter solenoid, ignition system problem, bad ignition interlock switch, clo…

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Why is the steering loose on my riding mower?

Main causes: damaged tie rods, bent or worn wheel spindle, worn front axle, damaged sector gear assembly…

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How do I fix a flat tire on my riding mower?

Main causes: punctured tire or inner tube, leaky valve stem, damaged wheel rim…

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Why won't my riding mower cut grass?

Main causes: worn or broken blade belt, broken belt idler pulley, blade clutch cable failure, bad PTO switch, damaged ma…

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How do I charge a dead battery on my riding mower?

Main causes: faulty battery, bad alternator…

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Why does my riding mower deck vibrate?

Main causes: damaged cutting blade, worn deck pulley, damaged mandrel pulley, loose fasteners on mower deck components…

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Why does my riding mower creep in neutral?

Main causes: shift lever needs adjustment, neutral control needs adjustment…

Read more

Why won't my riding mower move?

Main causes: worn or broken ground drive belt, bad seat switch, transaxle freewheel control engaged, transaxle failure, …

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